The length is 169 mm and the width is 160 mm. How many square meters is it? How is it calculated?

The length is 169 mm and the width is 160 mm. How many square meters is it? How is it calculated?

169 mm = 0.169 M
160mm = 0.16m
0.169 * 0.16 = 0.02704 square meters!

Square of x = 169, please help to work out x (to solve the problem) thank you

x^2=169
x^2-169=0
(x+13)(x-13)=0
X = - 13 or x = 13

Square of 169 = () × ()
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Square of 169 = (169) × (169)
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